Paper coating or treating machine.



No. 873,126. PATENTED DEG. 10,1907. H. P. HILBBRT.

PAPER COATING 0R TREATING MACHINE.

APPLIOATION FAILED JULY 23, 1906. v

5 SHEETSSHEET 1.

anoe'nlioz o 3 Q Q 3 Q M 0 N n 0 I w No. 873,126. PATENTED 1130. 10,1907.

r H. P. HILBERT.

PAPER COATING 0R TREATING MACHINE.

APPLICATION FILED JULY 23, 1906.

PATENTED DEC. 10, 1907.

H. P. HILBERT. PAPER COATING 0R TREATING MACHINE.

5 SHEETS-SHEET 3.

APPLICATION FILED JULY 23, 1906.

vweutoz atkwnug .No. 873,126. PATENTED DEC; 10, 1907.

H. P. HILBERT.

PAPER comma 0R TREATING MAGHINE.

APPLICATION FILED JULY 23. 1906.

5 sums-81mm '4.

,Snuantoz 07% 0M 23 i :11 zone:

UNITED" STATES PATENT OFFICE.

HENRY P. HILBERT, OF CINCINNATI, OHIO.

treating machine and especia ly for rendering paperwater proof, or forapplying parallin wax to'one or both sides of a paper web. At times,however, the machine may be used for applying oil, petrolatum, crude orrefined, and other material.

- One of the main advantages of the present machine is that will wax ortreat the grades of paper from the weakest tissue paper to heavytag-board. The paper is drawn from the wound roll preferably by two drawrolls at the same or regular speed throughout, or without any variationin the feed thereof to the waxing or treating parts of the mechanism. The wax or other material is evenly distributed'to the paper irrespectiveof the irregular thickness or inequality of caliper of the web.

The mechanism includes among other features a re-winding element havinga frictional device which is readily adjustable to vary the condition ofthe wound roll of treated paper and to have such roll either loose ortight.- Further, to momentarily change the speed of the 'transfer rollsengaged by the web to regulate the amount of wax orother materialapplied to the paper. The web of paper after receiving the material orwax from thetransfcr rolls is caused to engage or travel over guiderolls of a particular form or of slatted construction which causes theweb to adhere thereto and create a vacuum with respect to the web andprevent the latter from wrinkliin or in any other manner becomingirregularly distorted.

. Many other structural advantages will be hereinafter set forth and theprimary object of the invention is to provide a comparativ'ely simpleorganization of coacting elements which will render the application ofwax or other material to a paper web of any thickness or quality betweena minimum and maximum thickness in an effective and expeditious manner.a

In the drawings, Figure .1 is a side elevation of a machine embodyingthe features of the invention and showing the same broken Specificationof Letters Patent.

Application filed July 23. 1906. Serial No- 327-341.

PArER coarmebn TREATING MACHINE.

Patented Dec. 10, 1907.

away in part. Fig. 2 is an eleval ion looking towards opposite side of apart of the machine. Fig. 3 is a top plan view partially broken away.Fig. 4 1s a longitudinal vertical section of a portion of the machine onan enlarged scale. Fig. 5 is a longitudinal verticalsectibn on anenlarged scale of one of the distributing or calender rollers, togetherwith the attachments therefor. Fig. 6 is an enlarged longitudinalvertical section of the friction mechanism cooperating with therewinding device for the web.

Similar characters refer to like partsthroughout the several views.

The nmneral 1 designates a frame of suit able ,construction comprisingthe necessary parts for the su port of the elements which will behereinafter setforth and including standards or uprights 2 andrearwardly projecting sills or beams 3 having supporting pillars oranalogous devices 4 at their rear extremities. it will be understoodthat the frame will be generally organized and shaped to facilitate theapplication of the c o ")perat ing elernents and is subject tovariations in dimensions and proportions within the skill of theordinary mechanic to arrive at the result sought. In the front end ofthe frame a roll spindle 5 is ren'lovably held and is adapted to containa web 6 of paper which is regularly rolled thereon and may be takendirectly from a paper making, machine and positioned in the frame asclearly shown by Fig. .[t is obvious that this, spindle 5 may beprovided with any of the attachments now commonly employed in connectiontherewith for winding theron and unwinding therefrom a paper web, or tocontrol the degree of slackness or tautness of the coils of the web, andthe most improved devices for this purpose will be employed and theinvention is not confined to any particular mechanism at this point.Adjacent to what may be termed the feeding roller and comprising thespindle 5 are a pair of draw rollers 7 and 8, the draw roller 7 beingsolid and of metal, and the draw roller 8 preferably having awooden=core covered with felt or providedv 'with a yielding surface.

a steam coil 11 in the bottom thereof which is suitably supplied withsteam to maintain the wax ormaterial in proper condition for aplicationto.the paper web. This tray is held between the opposite sides of theframe and has mounted in the rear portion thereof a transfer roll 12,see Fig. 4,'said roll 12 being mounted on a shaft 13. Vertically belowthe shaft 13 is a shaft 14 having thereon a second transfer roll 15which is disposed in one ,extremity of a second tray 16 for holding waxor other material and also provided with'a steam coil in the bottomthereof similar to the tray. 10. The tray '16 is supported bysuitablehangers 17 and 18 attached-to the frame and both trays are heldin fixed position or always maintain the same relation with respect tothe transfer rollscooperating therewith. k

. The web of paper in passing from the feeding roller at differentpoints throughout the length of the machine or throughout the course ofrun of the said web, engages directing or guiding rollers 19, and 21,the roller 19 being located below the draw rollers, the roller 20between the draw rollers and. the

transfer roll 15, and the roller 21 between the two transfer rolls 12and 15, as clearly shown by Fig. 4. Other similar guiding or direct-'ing rollers will be hereinafter referred to and all of similarconstruction and embodying solid heads 22 of wood secured on a's'pindle23, the heads being connected by slats 24 with openings therebetween asat 25, and thereby providing means for causing the paper web to closelyadhere thereto or set up a vacuum in conjunction with said rollers torevent the formation of wrinkles or other irregular distortions of theweb as it traverses the different parts of the machine. The paper webfrom the feeding roller first passes down and under the guiding ordirecting roller 19 and thence upwardly between the draw rollers 7 and8, and after passin over the metal roller 7 it runs under and c oselycontacts with the guidingroller 20, and then over the transfer roll 15cooperatingwith the lower tray 16, and asses over the rear of theguiding roller 21 om the transfer roll 15, and then up to and over theupper portion of the transfer roll 12 in the upper tray 10'. Between theu rights 2 a series of hollow distributing rol ers 26 are mounted andare supplied with steam and have other connecforth. The web afterleaving the upper transfer roll 12 passes under the lowermostdistributing roller 26 and regularly in reverse directions traverses there'mainlng-ones of the stack of distributin rollers and finally passesoff rearward from t e uplperrnost distributing roller over a guidingr'o' er 27- rotatably supported by the sills or beams 3 and then down.

under and in contact with a guiding roller 28 also held by the beams or,sills 3 and then upelt 39 from a suitable line-sha t. tions which willbemorefully hereinafter set svaiee wardly and over a guiding roller 29on the rear terminals of the sills'pr beams or downwardly to a guidingroller 30 having bearings at its ends in supporting devices 31 locatedadjacent to the lower terminals of the pillars 4. From the guidingroller 30 the web 6 returns in an upward direction to the front of themachine and first passes over a guiding roller 32 supported by the lowerportions of the sills or beams 3 and also over a guiding roller ,33similarly held and located in ad vance of the roller 32 and over are-windihg shaft 'or spindle 34 sup orted by the rear'extremity of themain ame in rear of the lower tray, 16 and having in connection there-with mechanism for regulating 'the'speed of rotation thereof to controlthe slack or taut condition of the re-winding web and whichmechanismwill be more fully'hereinafter re-. ferred to. The web inpassing over the distributing rollers 26 has the paraffin .waxgor othermaterial regularly spread throughout the same, in view of the fact thatthe said dis tributing rollers are maintained at a constant degree ofheat by the steam fed 'thereinto. The sills 3 carrying the guidingrollers 27, 23, 29., 32 and 33 together with the guiding roller 30 maybe properly stated as providing a cooling extension and also serving togive the web after treatment a sufficient run to effect the drying ofthe material applied to the web before it is re-wound on the spindle 34.To facilitate the drying of the web as it passes over this coolingextension of the machine, it

is subjected to an air blast from a suitable blower and fed to a pipe 35which will be tapered to such a degree as to equalize the pres- \surethroughout the length thereof, and rovide'd with three branches 36 depening therefrom and extending across the machine to thecenter line atintervals, the mouth 37 of each branch being tapered-to an oblong funneland the air delivered therefrom directly on and along with the web andon both sides. I

The foregoing 7 description relates to the main elements of theinvention and includes many of the essentialfeatures, and the operativemechanism or the devices controlling the movement ofthe several parts 7just eX- plained will 'now be set forth. Between the up er terminals ofthe uprights 2 a driving u ley 38 is arranged and is o erated by a Thispulley 38 will be preferably of the double type and also en aged by abelt 40 running downwardly an rearwardly of the web re-windingmechanism. The pulley or the shaft carryingthe same. will also havethereon a sprocket-wheel 41 referably having fifteen teeth and-traverseby a chain belt 42 which runs downwardly and enga es a sprocket wheel 43cooperating with t 1e distributing roller 26 nextto the upermost of theseries of said rollers and prefiarably provided with twenty-live teeth,this sprocket wheel 43- eontrolling-thc rotation of the distributingrollers. Thesedistributing rollers receive their motion directly fromthe driving pulley and also serve in a manner which will be presentlyexplained to operate the remaimngpreferably having nine teeth andtraversed .three revolutions per minute. toothed sprocket wheel 51isremoved and by a chain belt 48 which runs upwardly over a sprocketwheel 49 held on a shaft 50 and preferably having forty teeth therein.()n the shaft 50 a sprocket wheel 51 is removably applied and istraversed by a chain belt 52 which extends downwardly and engages asprocket wheel 53 connected to the spindle or shaft 13 of the transferroll 12. This spindle or shaft 13 also has thereon a pulley 54 and onthe spindle or shaft 14 of the lower transfer roll 15 a pulley55 issecured. The pulleys 54 and 55 have a crossed belt 56 trained thereoverto cause the transfer rolls 15 and 12 to have a proper direction ofrotation with respect to the movement of the web of paper.

The amount of melted paraffin or other material applied to the web ofpaper moving over the transfer rolls 15 and 12 is dependent solely uponthe rapidity ofrotation of the said rolls and the degree of rotation ofthese rolls may be readily varied by moving or changing thesprocket'wheel 51 or replacing the same by sprocket wheels havingdifferent number of teeth. Let it be presumed, for example, that thesprocket wheel 51 as shown is provided with seven teeth and the sprocketwheel 53 with thirty teeth. With this proportion the transfer rolls willrun If the sevenreplaced by a twenty-foiir-toothed Wheel then thetransfer rolls will run thirteen revolutions per minute. From. theforegoing it will be understood that the faster the transfer rollsrotate the greater will be the. amount of waxor other material picked upfrom the trays 16 and 10 and delivered to the paper, and that thequantity of material applied may be regulated at will by changing thesprocket wheel co6perating with the spindle or shaft 50. The sprocketwheel 51 may be varied between a seven-toothed wheel and atwenty-four-toothed wheel. It will also be observed that the drawingrollers are driven at a rate of speed in proportion to the rotation ofthe distributing rollers and that such speed will be uniform, the objectbeing to.

have the paper web travel at the same speed.

rolls may be modified as just explai'ned to at all times, but the speedof the transfer '59, (so and 61.

At regular intervals several chain belts will be engaged by belttightening idlers 58, Furthermore, it will be seen that the machine mayhave transfer rolls of considerable diameter used therein and co- 1operate-with the same trays andalso the other rollers may be modified indimensions and general proportions with respect to each other as may befound necessary.

The rewinding spindle 31 is provided with frictional mechanism forcontrolling the tight orloose ceiling of thelweb thereon, suchfrictional mechanism being illustrated on an enlarged scale by 6. tionalmechanism consists of a hand-wheel This fric- I 62 secured to ascrew 63niovably engaging a screw-threadei'l socket 64 in the outer end of thespindle 34, said screw having one extremity'of a yoke 65 attachedthereto and also to asleeve 66 surrounding the shaft in- .side of anouter bearing 67 held by a bearing yoke 68 secured to the ad jace'ntside portion of the frame, as clearly shown by Fig. 3. The sleeve 66contacts with the outer end of a hub 69 carrying a friction-disk70 atits inner end and rotatable with the shaft when proper adjustment ismade through the medium of a second friction disk 71 fast on the shaft,both friction disks l1 V1Il,Q' contiguous faces with angular offsets or)eveled edggs as at 72 to provide a snug interiittingof the.

contiguous faces of the two disks. The contacting face-of the disk 71 isprovided with a leather covering 73 to render the frictional contactthereof effective. Between an inner bearing 74 for the spindle 34 andthe hub 75 of. the adjacentdisk 71 and also between the sleeve 66 andthe adjacent end of the hub 69 of the disk 70, anti-frictional bearingde-' vices or bolts 76 are interposed to render the parts sensitive intheir operations as well as. obviate wear between t 1e several parts atthe points set-forth. On the hub 69 a pulley 77 is mounted and isengaged bythe belt 40 running from the driving pulley 38. This pulley 77is'formed with an inner seat or cavity 78 and incloses a spring 79, oneterminal of the spirng being attached to the hub 69 and the othertermlnal to the pulley 77. The object of the use of this spring is torelease the pulley when the friction mechanism through the actuation .ofthe handwheel 62 and screw 63 is operated-to release the friction disk70 from the friction disk 71,

it being seen that as the spring is beingwound tight in view. of thefact that it is secured to'opposite extremities respectively to the hub69 and the pulley 77, that the said hub will be rotated vertically andthe rotary spindle.

It will be understood that the driving pulley organization 0 erated fromthe lineshaft, as hereinbe ore set forth, will be eqnip ied with fastand loose pulleys to suitable )elt shifting means to throw the ma chineinto and out of operation when found desirable. The distributing rollersare also supplied with steam from a suitable steam pipe 80 attached toasteam supply source and each roller has a T.-connection 81provided'with a valve 82- as clearly shown by Fig. 2, and whereby thesteam may be admitted to or shut off from the several rollers as foundnecessary, or different quantities of 2 5 steam may be admitted to theseveral rollers,

as it may be necessary, to have the rollers hottest-nearest the bottomand gradually decreasing in temperature towards the top of the stack ofrollers. The steam su ply pipe 80 also has a valve 83 therein whic 1 isoperative to entirely shut off the steam from the distributing rollers.Other accessories not described will be supplied at points where foundnecessary and Within the purview of mechanical skill..

I What I claim is:

1. In a machine of the class specified, the combination ,of upper andlower trays, trans- -fer rolls cooperatlng with said trays, drawingrollers, a spindlefor holding a web of paper,

slatted guiding rollers between the spindle for holding the web of paperand the drawing rollers, and between the latter and the transfer rolls,heated distributing rollers, and cooling means for treatin the web ofpaper after it leaves the heated stributing rollers.

2. In a machine of the class set forth, the combination with a papersuppor tin spindle, 1 drawing rollers adjacent to the sai spindle,

I '50 ,one of the rollers having a flexible covering and the other solidmetal, means for moving one roller toward the other, a tray forcontaining a liquid material, a transfer roll disposed in upper relationto the tray to raise I i the liquid therefrom, a stack of heateddistributin rollers arranged above the tray, and air feeding devices forcooling the paper web after it leaves the distributln rollers.

3. In a machine of the CliiSSfiiGSCIlbGd, the combination of paper webfeeding mechanism, means for applying a liquid coating to the paper, astack of heated distributingv rollers, guide rollers associatedtherewith, means for actuating the distributing and guide rollers, meansfor causing the web of paper to run slack or'taut, an extended conveyingmeans having guiding devices, and

means for supplying an air blast to the web of paper when-the samepasses over the conveying means.

4. In a machine of the class described, the combination with a paper suporting spindle drawing rollers adjacent to t 1e spindle, one of therollers having a flexible covering and the other solid metal, means formoving one roller towards the other, a tray for containing a liquidmaterial, a transfer roll disposed in upperrelation to the tray to raisethe liquid therefrom, a stack of heated distributing rollers arran edabove the tray, and air feeding devices or cooling the paper web afterit leaves the distributing rollers.

5. In a machine of the class described, the combinationof a pa )er webfeeding mechanism, nfeans for applying a liquid coating to the paper, astack of heated distributing rollers, uiderollers, associatin therewith,means or actuating the distributing and ide rollers, means for modifyingthe speed of the feedin mechanism without changing the speed of themeans forapplying the coating material, a conveying means having guidingdevices, and means for cooling the paper when passing over ,theconveying means. I

In testimony whereof, I afiix my signature in presence of two witnesses.

I HENRY P. HILBERT.

Witnesses:

FREDERICK J. WERNER, J. W. JoHNsoN.

